* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 100vh;
    background: linear-gradient(#4876ff, #9370db);
}

.log_or_reg {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 500px;
    padding: 50px;
    background-color: rgba(0, 0, 0, 0.2);
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.4);
}

.log_or_reg h1 {
    color: #fff;
    margin-bottom: 20px;
}

.log_or_reg .login_or_reg_input_box {
    position: relative;
    width: 100%;
}

.log_or_reg .login_or_reg_input_box input {
    outline: none;
    border: none;
    width: 100%;
    padding: 10px 0;
    margin-bottom: 30px;
    color: #fff;
    font-size: 16px;
    border-bottom: 1px solid #fff;
    background-color: transparent;
}

.log_or_reg .login_or_reg_input_box label {
    position: absolute;
    top: -20px;
    font-size: 12px;
    left: 0;
    padding: 10px 0;
    pointer-events: none;
    color: #fff;
}

.log_or_reg a {
    display: inline-block;
    margin: 0 auto;
    padding: 10px 20px;
    color: #fff;
    text-decoration: none;
    transition: all 0.4s;
}

.log_or_reg a:hover {
    color: #000;
    background-color: #fff;
    opacity: 0.2;
}
